Bart MK1 Pups and Pre

Hey, i did a search for these, and only found 3 threads and none of them were helpful. can anyone give me any information about this combo?
they're in a fretless that i'm buying-mahogany body, wenge neck, rosewood fretboard, unlined freltess 4 string.

I had a Cort NA5 bass with these pickups. They're actually designed by Bartolini and manufatured in Korea. I had a bad experience with this bass, but the pick up was ok ... I tried this bass for 3 months, I don't like the humbucking sound for bass, I prefer the singles. I got back fast to the JB world, I have a JB clone fretless. Why don't you try to buy a fretlees neck and put it in your Nice Essex that you trying to sell ? For my taste, fretless sounds better with single coils.
Hope this helps.
Carlos